Why carbon dioxide ice exists on mars but not on earth?

Answer 1

The oxygen in Earth's atmosphere exists as a result of the living things on it (such as plants and bacteria) absorbing carbon dioxide and replacing it with oxygen. Before life on earth, there was very little oxygen in the atmosphere.

Given that there is no life on Mars (or at least, none that we know of), the biological processes that created oxygen in Earth's atmosphere do not take place on Mars.

Answer 2

CO2 can be made to artificially freeze on Earth, we cal it "dry ice". However the natural, ambient temperature on the surface of the Earth is above the freezing (sublimation) temperature of CO2 and thus solid CO2 will not condense naturally out of the atmosphere of Earth.

However, the plant Mars if further away form the sun and the atmosphere is thin and cold. Thus on Mars surface temperatures at the poles are low enough for CO2 to freeze out of the Martian atmosphere.

Answer 3

Carbon dioxide ice, also known as dry ice, exists on Mars due to the planet's thin atmosphere and low temperatures which allow for the direct transition of carbon dioxide from gas to solid. On Earth, the thicker atmosphere and higher temperatures prevent carbon dioxide from solidifying into ice directly, instead it sublimes from solid to gas.

Answer 4

because it is to hot for ice on earth but on mars it is so hot ice freezes on mars even though it is hot ice is irrissatble

Answer 5

Probably from it's volcanoes which erupted in the distant past

Answer 6

because mars is farther away from the sun than earth is.

Answer 7

Mars has two polar ice caps that are made of frozen covered with a carbon dioxide layer.

Answer 8

Carbon dioxide freezes on Mar and not on Earth because it is colder on Mars and the atmospheric pressure on Mars is lower than on Earth.